package com.example.demo.config;

import at.pollux.thymeleaf.shiro.dialect.ShiroDialect;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.LinkedHashMap;
import java.util.Map;

@Configuration
public class ShiroConfig {

    //ShiroFilterBean
    @Bean
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("getDefaultWebSecurityManager") DefaultWebSecurityManager defaultWebSecurityManager) {
        ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
        //设置安全管理器
        bean.setSecurityManager(defaultWebSecurityManager);

        //添加shiro的内置过滤器
        /*
            anon:无需认证就能访问
            authc:必须认证才能访问
            user:必须拥有记住我功能才能访问
            perms:拥有某个资源的权限才能访问
            role:拥有某个角色权限才能访问
         */
        //拦截
        Map<String, String> filterMap = new LinkedHashMap<>();

        filterMap.put("/user/add", "perms[user:add]");
        filterMap.put("/user/update", "perms[user:update]");
        filterMap.put("/login","anon"); // 放行登录接口

        //设置登录的请求
        bean.setLoginUrl("/toLogin");

        //设置未授权的请求
        bean.setUnauthorizedUrl("/noauth");

        bean.setFilterChainDefinitionMap(filterMap);
        return bean;
    }

    //DefaultWebSecurityManager
    @Bean
    public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm) {

        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();

        //关联UserRealm
        securityManager.setRealm(userRealm);

        return securityManager;
    }


    //创建realm对象
    @Bean
    public UserRealm userRealm() {
        return new UserRealm();
    }

    //整合shiroDialect:用来整合shiro thymeleaf
    @Bean
    public ShiroDialect getShiroDialect() {
        return new ShiroDialect();
    }
}